Topic Details (Notes format)

Cell: Structure and Functions

Subject: General Science

Book: NCERT Science Class 8

The cell is the basic unit of life.
- **Types**:
- Plant cells (cell wall, chloroplast).
- Animal cells (no cell wall).
- **Cell Components**:
- Nucleus (controls activities).
- Cytoplasm (contains organelles).
- **Functions**:
- Growth, repair, reproduction.

**Possible Exam Questions:**
1. What is the difference between plant and animal cells?
2. How does the nucleus control cell activities?
3. What are the functions of different cell organelles?
4. Why is the cell called the basic unit of life?
5. Explain the process of cell division.

Practice Questions

Which gas is known as "laughing gas"?

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What is the approximate age of the Earth?

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Which metal is liquid at room temperature?

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Which of the following is a fundamental force in nature?

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Which is the smallest bone in the human body?

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Which is the largest planet in the Solar System?

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Which type of bond is present in sodium chloride?

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Which gas is commonly used in balloons to make them float?

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What type of energy is stored in a stretched rubber band?

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Which part of the cell contains the genetic material?

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